Feron crystallinum | |
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The galls formed by the unisexual generation of F. crystallinum | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Cynipidae |
Genus: | Feron |
Species: | F. crystallinum
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Binomial name | |
Feron crystallinum Bassett, 1900
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Synonyms | |
Andricus crystallinus |
Feron crystallinum, also known as the crystalline gall wasp, is a species of gall-forming wasp in the genus Feron.[1][2] The galls of its all-female parthenogenic generation are pink and covered in hairs that are white, red, or brown. These galls are often massed together in clumps that can cover the underside of leaves. Individual galls are 12–14 mm high, 7 mm across, and have a single chamber for larvae. This generation emerges in late winter. In the spring, the bisexual generation of males and females induces much smaller galls with shorter hairs. F. crystallinum galls are found in all species of oaks in California.[3][4]